866530463 has 4 divisors (see below), whose sum is σ = 881217480. Its totient is φ = 851843448.

The previous prime is 866530447. The next prime is 866530471. The reversal of 866530463 is 364035668.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 866530463 - 2⁴ = 866530447 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 866530463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866530403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7343420 + ... + 7343537.

It is an arithmetic number, because the mean of its divisors is an integer number (220304370).

Almost surely, 2^866530463 is an apocalyptic number.

866530463 is a deficient number, since it is larger than the sum of its proper divisors (14687017).

866530463 is a wasteful number, since it uses less digits than its factorization.

866530463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14687016.

The product of its (nonzero) digits is 311040, while the sum is 41.

The square root of 866530463 is about 29436.8894926077. The cubic root of 866530463 is about 953.3695535192.

The spelling of 866530463 in words is "eight hundred sixty-six million, five hundred thirty thousand, four hundred sixty-three".